module MenuBuilder
  module Controller
    extend ActiveSupport::Concern

    def menu_items(*items)
      instance_variable_set('@menu_items', items)
    end
    alias_method :menu_item, :menu_items

    module ClassMethods
      def menu_items(*items)
        options = items.extract_options!

        before_action(options) do |controller|
          controller.instance_variable_set('@menu_items', items)
        end
      end
      alias_method :menu_item, :menu_items

    end

  end
end